The 6-foot-4, 280-pound Bostwick, who was offered by the Irish in the winter, said his contact with assistant coach Tony Alford has slowed markedly.
"I'm not really hearing from them a lot," he said. "I haven't really gotten a lot of letters or messages from them lately."
Bostwick, who is the seventh-rated defensive tackle in the 2013 class, spent the weekend at South Carolina's spring game, and is hearing from some of the top programs in the nation.
"It was good," he said of the South Carolina visit. "I went around campus and they showed me all the locker rooms there and the facilities and the classrooms."
However, Bostwick isn't thinking about an early decision.
If the Irish would rekindle their interest, what would Bostwick do?
"I'd listen to them," he said. "I was planning on using one of my official visits to go up there."
Bostwick doesn't plan on deciding until after the season.